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Smart suction device for less blood trauma: a comparison with Cell Saver
X M Mueller1, H T Tevaearai, J Horisberger
1Clinic for Cardiovascular Surgery and Surgical Intensive Care Unit, Centre Hospitalier Universitaire Vaudois, CH-1011 Lausanne, Switzerland. xavier.mueller@chuv.hospvd.ch
Summary
The Smart suction system better preserves blood elements during cardiopulmonary bypass than the Cell Saver system, reducing red blood cell damage and platelet loss. This innovative system minimizes hemolysis and hypoproteinemia during prolonged intrathoracic aspiration.
Area of Science:
- Biomedical Engineering
- Cardiovascular Surgery
- Hematology
Background:
- Cardiopulmonary bypass often leads to hemolysis due to cardiotomy suction mixing air and blood.
- Existing suction systems can cause significant damage to blood components.
Purpose of the Study:
- To compare the Smart suction system with the Cell Saver system.
- To evaluate their effects on blood elements during prolonged intrathoracic aspiration in a calf model.
Main Methods:
- A calf model with induced blood loss was used for a 6-hour aspiration period.
- Blood was continuously aspirated using either the Smart suction system or the Cell Saver system.
- Blood samples were analyzed hourly for cell counts and biochemistry.
Main Results:
- The Smart suction group maintained stable red cell counts, plasma protein, and free hemoglobin.
- The Cell Saver group showed significant drops in red cell count, platelet count, and plasma protein levels.
- Platelet count decreased significantly in the Smart suction group after 5 hours, but less severely than in the Cell Saver group.
Conclusions:
- The Smart suction system effectively avoids red blood cell damage.
- It causes less platelet count reduction compared to the Cell Saver system.
- The Cell Saver system induces substantial blood cell destruction and severe hypoproteinemia.